1) I sighted my UZI in with the folding steel stock, then installed the polymer detachable stock and re-checked my zero - there was no change. I would expect no change between your steel stock and wooden stock.

2) Rather than grinding the rear sight into a "V", I recommend drilling out the "100" aperture to 1/16" and reaming for smoothness. Be warned: the steel used in the raer sight is VERY tough stuff and requires a stout drill bit to get through it. Another suggestion would be to do this surgery on a replacement part so that the gun could be returned to stock easily. The larger aperture acts like a ghost ring sight and allows much faster target acquisition. You would still have the "200" aperture for precision long shots.

3) The UZI SMG Operation Manual gives a muzzle velocity of 1394 feet/second for a 115gr bullet. Using a ballistics program set to standard atmospere at sea level and using the UZI sight height (which has no effect on drop, but will affect zero) of 1.75" we get the following bullet drops:

As always, your mileage may vary, but this should give you a starting point for determining where your load shoots in your gun. BTW, the Ballistic Coefficient for a 115gr FMJ round is approximately 0.142. The muzzle velocity is based on NATO spec ammo, so yours may be less.

4) No. The UZI cannot be re-configured for closed bolt operation. It is not a target weapon, it is a battle rifle with high reliability and acceptable accuracy.